Techno imagined the future in a city where the old industrial future was already rusting. Juan Atkins and his Detroit peers joined the electronic precision of Kraftwerk and electro to African American funk, soul and club culture; The Electrifying Mojo's radio helped those worlds meet without an appointment. Synths, the TR-808 and TR-909, sequencing and four beats gave the genre a language, but its subject was futurism, escape and collective motion. Europe answered through Berlin, Tresor and many mutations. Machines removed jobs and opened a dance floor in the same decade-capitalism has a complicated sense of humour.